What was the result of the Dred Scott V Sanford case and why was it important?

How has our understanding of the first sentence of the declaration of independence changed over time?

Which act was a response to three high-profile assassinations? a. the mailing of firearms act b. the national firearms act c. the gun control act d. the brady handgun violence prevention act

These facilities were organized and sponsored by churches or charities during the great depression in an effort to feed the homeless and needy.